lifeextension.com

https://lifeextension.com· First analyzed 26 Apr 2026· Updated 26 Apr 2026

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lifeextension.com

Mobile

Sponsored

Hosting Provider

Flexential Corp

IP Address

96.46.253.42

Site Location

🇺🇸 Fort Lauderdale, United Statesvia schema_nap

Server Location

🇺🇸 Charlotte, United States

ASN

AS13649

Organization

Flexential Corp

CDN

Akamai

WAF

Akamai

Nameservers

ns3.dnsmadeeasy.com.ns4.dnsmadeeasy.com.ns2.dnsmadeeasy.com.ns1.dnsmadeeasy.com.+1 more

Performance

Core Web Vitals

Weight

First Contentful Paint

1.1 s10%

Speed Index

1.4 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1.8 MB

125 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Tailwind CSS

CMS

Ghost

Infrastructure

Hosting

Flexential Corp

CDN

Akamai

Technology Stack

8 Technologies Detected

CSS Frameworks

Analytics

Icon Libraries

Tag Managers

Advertising

Customer Support

SEO Analysis

B77/100

Meta Tags15/15

Content10/12

Headings8/8

Technical24/25

E-E-A-T2/7

Images2/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile3/4

Indexability3/3

lifeextension.comlifeextension.com

Vitamins and Supplements Rooted in Science - Life Extension

Get clinically-studied, premium vitamins and supplements and lab tests from the people who’ve spent 40 years passionately pursuing healthy living.

Title Length59 chars

Recommended: 50-60 chars (~356px / 580px)

Description Length146 chars

Recommended: 120-160 chars

Issues (1)

• Most images missing alt text (37/61) — critical for accessibility and SEO

7 issues found

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Crawlability

Sitemap

Type: standard

8,057 URLs

robots.txt

18 rules

Sitemap reference found

Local SEO

Local Search Readiness

33/100

Needs Work

9 12

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AI & LLM Readiness

D48/100

Bot Access

20/25

Machine Read.

8/25

Schema Data

7/25

Citation

13/25

AI Bot Access

14/14 accessible

AI Search

OAI-SearchBot

PerplexityBot

Claude-SearchBot

Gemini-Deep-Research

DuckAssistBot

Training

GPTBot

ClaudeBot

Google-Extended

Meta-ExternalAgent

Bytespiderinfo

Amazonbot

Applebot-Extended

CCBotinfo

Fetch

ChatGPT-User

Machine Readability

llms.txt

llms-full.txt

Semantic HTML

Heading Hierarchy

nav

Text ratio:4%

Words:1,626

Token eff.:Optimal

Depth:1/5

Structured Data

2 JSON-LD

Organization×1.1ProductSearchAction

sameAs entity links

Citation Readiness

Opening Summary46w

Descriptive Headingsavg 4.2w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (10)

AI readiness recommendation preview...

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Sponsored

Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.

74/100

Passed

Critical

Warnings

Images & Alt Text

15/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

17/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

10/15

Verifies form fields have labels, error messages are clear, and inputs are properly associated.

Color & Contrast

15/15

Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.

Keyboard & Focus

11/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

6/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

4 recommendations

•Accessibility recommendation preview...

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Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.

40/100

230 mg

CO₂e / view

1.8 MB

Page Weight

50%

Cleaner Than

New Visitor

263 mg

Returning (cached)

132 mg

Annual (10K/mo)

27.6 kg

Emission Segments

Data Center

51 mg

Network

55 mg

Device

124 mg

Resource Breakdown

JavaScript

634.6 KB

Images

874.7 KB

CSS

57.9 KB

Fonts

178.6 KB

HTML

55.9 KB

Other

60.9 KB

Green Hosting Not Verified

Flexential Corp

7 recommendations

•Carbon footprint recommendation preview...

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Security Score

81%Very Good

Interactive

HTTPS

WAF

42d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

10.03.2026

Valid Until

08.06.2026

Subject Alternative Names (4)

health.lifeextension.commycart-api.lifeextension.commycart.lifeextension.comwww.lifeextension.com

SHA-256 Fingerprint

4B:FF:34:2A:EA:99:D3:16:2F:56:D0:97:FF:76:06:98:D3:5E:CE:81...

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HTTP Headers

Developer Console

access-control-allow-headers

Origin, X-Requested-With, Content-Type, Accept

access-control-allow-methods

POST,GET

cache-control

🔴 No Cache(max-age=0, no-cache, no-store)

content-encoding

📦 Gzip(gzip)

content-security-policy

frame-ancestors https://*.lifeextension.com http://localhost...

content-type

text/html; charset=utf-8

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

lifeextension-com.mail.protection.outlook.com

Domain Information

lifeextension.com

Domain Age

27y 2m

Created

25.02.1999

Expires

02.11.2026

Last Updated

03.11.2025

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner

OneTrust

GDPR Indicators

Cookie consent banner detected

CMP: OneTrust

Data Protection Officer mentioned

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.

83/100

Mobile Friendly34 breakpoints

Viewport Meta

The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.

Responsive Design

Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.

Touch Icons

Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.

Readable Font Size

Base font size should be at least 16px on mobile to ensure text is readable without zooming.

Relative Units

Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.

No H-Scroll Risk

No elements wider than the viewport that would cause horizontal scrolling on mobile devices.

Tap Targets OK

Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.

No Fixed Widths

No elements with fixed pixel widths that could overflow on smaller screens and break the layout.

Viewport

width=device-width, initial-scale=1, shrink-to-fit=no

1 recommendation

•Mobile compatibility recommendation preview...

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Typography & Readability

Roboto

WCAG AAA

73/100

Readability

/30

16/30

14px · LH 1.50

Hierarchy

/20

17/20

2.59x ratio · ✓ H1→H6

WCAG

/25

24/25

9.74:1 min contrast

Performance

/25

16/25

System fonts

Heading Font

Roboto

Sans36px

Body Font

Roboto

Sans14px

Contrast Ratio

9.74:1

WCAG AAA (≥7:1)

Reading Comfort

~98 CPL

Wide lines

36px

24px

20px

14px

❌ Critical: 14px body text is too small. Minimum 14px, recommend 16px+.

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

⚠️ Wide lines: ~98 chars/line. Use max-width: 65ch for comfortable reading.

⚠️ Hard to read: Flesch score 35/100. Simplify sentences for wider reach.

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 9.7:1).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

Flesch 35

Color Palette

10 unique colors

Light

#ffffff

Primary· 39.4%

#f0efec

Secondary· 12.4%

#a5243a

Accent· 10.2%

#111f4a

Primary· 6.5%

#324675

Secondary· 6.5%

#c1a49c

Secondary· 6.2%

#6b8699

Secondary· 4.7%

#d3dbdc

Border· 4.3%

Business & Marketing Stack

4 Tools Detected

Enterprise

Customer Support

ZendeskEnterprise

Live chat and helpdesk tools

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

OneTrustEnterprise

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(8)googletagmanager.com(4)lifeextension.com(4)cdn.cookielaw.org(1)s.go-mpulse.net(1)

Website Identity

Life Extension

Organization

Looking to live a longer, healthier life? You’ve come to the right place! Since 1980, Life Extension has offered high quality vitamins and minerals and dietary supplements that support healthy aging, longevity–and overall health and wellness. And our science-based supplements are just the beginning;

customerservice@lifeextension.com

+18002262370

www.lifeextension.com

27 years old

3600 West Commercial Blvd., Fort Lauderdale

33309, Fort Lauderdale, Florida

Location detected: 🇺🇸 United States, Fort Lauderdalevia schema_nap

GoDaddy.com, LLC📧 Microsoft 365enEst. 1980

Social Profiles

Facebook X (Twitter)Instagram LinkedIn YouTube TikTok Pinterest

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Last analyzed: 26 Apr 2026 at 15:45

Historical Analysis & Change Tracking